Illustration of Fill Options for Annotations

Previous versions of LEADTOOLS supported annotations with translucent backgrounds. Version 14.5 of LEADTOOLS adds an alpha option that allows you to specify an alpha value from 0 (completely transparent background) to 255 (completely opaque background) inclusive.

When enabled using the LAnnotation::SetOptions function, you can right-click an annotation object to display the Fill dialog with the new alpha option. Here you can enter an alpha value from 0 – 255 inclusive. The following figure displays the Fill dialog for the Stamp object:

The following figure displays rectangle annotation objects using different alpha values:

For more information, see the documentation for LAnnotation::GetFillModeExt and LAnnotation::SetFillModeExt.

The following rectangle annotation objects illustrate the available fill modes and patterns. The foreground and background colors help to illustrate the effects.

Back row:

Front row: